EP0259900A3 - Combined linear hydraulic motor and transfer valve - Google Patents

Combined linear hydraulic motor and transfer valve Download PDF

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Publication number
EP0259900A3
EP0259900A3 EP87201251A EP87201251A EP0259900A3 EP 0259900 A3 EP0259900 A3 EP 0259900A3 EP 87201251 A EP87201251 A EP 87201251A EP 87201251 A EP87201251 A EP 87201251A EP 0259900 A3 EP0259900 A3 EP 0259900A3
Authority
EP
European Patent Office
Prior art keywords
linear hydraulic
piston rods
chambers
hydraulic motors
cylinder housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87201251A
Other versions
EP0259900B1 (en
EP0259900A2 (en
Inventor
Raymond Keith Foster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT87201251T priority Critical patent/ATE62642T1/en
Publication of EP0259900A2 publication Critical patent/EP0259900A2/en
Publication of EP0259900A3 publication Critical patent/EP0259900A3/en
Application granted granted Critical
Publication of EP0259900B1 publication Critical patent/EP0259900B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G25/00—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement
    • B65G25/04—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors
    • B65G25/06—Conveyors comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyors having carriers, e.g. belts
    • B65G25/065—Reciprocating floor conveyors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B15/00—Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Reciprocating Conveyors (AREA)
  • Servomotors (AREA)
  • Types And Forms Of Lifts (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Hydraulic Motors (AREA)

Abstract

Piston rods of three linear hydraulic motors are connected at their outer ends to two spaced apart transverse frame members. A cylinder housing is driven back and forth along each pair of piston rods. Three transverse drive beams are provided. Each drive beam is directly connected to an associated one of the cylinder housings. Three sets of floor slat members are provided. Each set is connected to azn associated one of the transverse drive beams. The linear hydraulic motors are operated for moving the floor slat members in one direction, for advancing a load, and for retracting them in an opposite direction. Each cylinder housing has four fluid chambers. First and third chambers are interconnected and the second and fourth chambers are interconnected. This arrangement provides adequate force producing area with a relatively small diameter cylinder housing. Fluid passageways are formed in the piston rods. Transfer valves are incorporated in end portions of some of the linear hydraulic motors. Each transfer valve includes an actuator rod which extends through the passageway in its piston rod. U-shaped tubes are clamped onto the outer end portions of the piston rods by means of clamp plates and interconnecting nut and bolt assemblies.
EP87201251A 1986-09-08 1987-06-30 Combined linear hydraulic motor and transfer valve Expired - Lifetime EP0259900B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87201251T ATE62642T1 (en) 1986-09-08 1987-06-30 COMBINATION OF LINEAR HYDRAULIC MOTOR AND TRANSFER VALVE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/905,098 US4712467A (en) 1986-09-08 1986-09-08 Combined linear hydraulic motor and transfer valve
US905098 1992-06-26

Publications (3)

Publication Number Publication Date
EP0259900A2 EP0259900A2 (en) 1988-03-16
EP0259900A3 true EP0259900A3 (en) 1988-08-17
EP0259900B1 EP0259900B1 (en) 1991-04-17

Family

ID=25420288

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87201251A Expired - Lifetime EP0259900B1 (en) 1986-09-08 1987-06-30 Combined linear hydraulic motor and transfer valve

Country Status (7)

Country Link
US (1) US4712467A (en)
EP (1) EP0259900B1 (en)
JP (1) JP2609250B2 (en)
AT (1) ATE62642T1 (en)
CA (1) CA1272426A (en)
DE (1) DE3769410D1 (en)
ES (1) ES2021013B3 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4748894A (en) * 1986-09-08 1988-06-07 Foster Raymond K Drive/frame assembly for a reciprocating floor
US4748893A (en) * 1986-09-08 1988-06-07 Foster Raymond K Drive/frame assembly for a reciprocating floor
US4821868A (en) * 1986-09-08 1989-04-18 Foster Raymond K Drive/frame assembly for a reciprocating floor
DE3816092C2 (en) * 1987-05-28 1996-12-05 Noell Serv & Maschtechn Gmbh Hydraulic lifting cylinder
US4969389A (en) * 1988-05-03 1990-11-13 Foster Raymond K Multisection hydraulic drive unit with single piston rod
US5301798A (en) * 1993-03-08 1994-04-12 Wilkens Arthur L Reciprocating floor conveyor for caustic materials
US5390781A (en) * 1993-04-28 1995-02-21 Foster; Raymond K. Mounting assembly and method for reciprocating slat conveyor
US5355995A (en) * 1993-10-14 1994-10-18 Foster Raymond K Reciprocating floor conveyor having separable floor and drive portions
US5373777A (en) * 1993-12-03 1994-12-20 Foster; Raymond K. Linear hydraulic motor with snubber
US5489018A (en) * 1993-12-09 1996-02-06 Foster; Raymond K. Stem for mounting reciprocating slat conveyor
US5839568A (en) * 1994-02-07 1998-11-24 Clark; Gary R. Reciprocating floor conveyor control system
CA2153378C (en) 1994-07-07 2000-05-09 Raymond Keith Foster Replaceable wear surface for conveyor slats
US5415271A (en) * 1994-09-12 1995-05-16 Foster; Raymond K. Reciprocating floor conveyor with overlay, protective plate
US5427229A (en) * 1994-09-20 1995-06-27 Foster; Raymond K. Control system for reciprocating floor conveyor
US6439375B1 (en) 1994-10-24 2002-08-27 Raymond Keith Foster Reciprocating floor conveyor for conveying palletized loads or the like
US5588522A (en) * 1994-10-24 1996-12-31 Raymond Keith Foster Reciprocating floor conveyor for conveying palletized loads or the like
US5562018A (en) 1995-11-21 1996-10-08 Foster; Raymond K. Hydraulic valve
US6782994B1 (en) * 2003-05-30 2004-08-31 Keith Investments L.L.C. Heavy-duty reciprocating slat conveyor
US20090078541A1 (en) * 2007-09-24 2009-03-26 Randall Mark Foster Drive/frame assembly for a reciprocating slat conveyor
AU2016214966B2 (en) 2015-02-03 2017-08-31 Ogon Contracting Pty Ltd Safety valve for a hydraulic or pneumatic tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077145B (en) * 1955-04-30 1960-03-03 Buss Ag Hydraulic displacement device for systems for storing piece goods, in particular for parking automobiles
FR2288896A1 (en) * 1974-10-21 1976-05-21 Poclain Sa CYLINDER
US4143760A (en) * 1975-01-10 1979-03-13 Hallstrom Olof A Reciprocating conveyor
EP0004165A1 (en) * 1978-03-02 1979-09-19 Applied Power Inc. Locking cylinders
WO1984003686A1 (en) * 1983-03-22 1984-09-27 Raymond Keith Foster Reduced size drive/frame assembly for a reciprocating floor conveyor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977696A (en) * 1934-01-10 1934-10-23 Western Electric Co Article conveying apparatus
GB500673A (en) * 1938-01-19 1939-02-14 Automotive Prod Co Ltd Improvements in or relating to liquid pressure remote control systems
US2550925A (en) * 1948-06-10 1951-05-01 Brown & Sharpe Mfg Means for blocking the bore of a long hollow piston rod
US2629504A (en) * 1950-03-02 1953-02-24 Int Harvester Co Reciprocating floor bottom for unloading vehicles
US2922399A (en) * 1957-01-24 1960-01-26 Ibm Hydraulic drive and control therefor
US2973856A (en) * 1958-04-09 1961-03-07 Prec Scient Company Conveyor
NL6706657A (en) * 1967-05-12 1968-11-13
US3534875A (en) * 1968-11-18 1970-10-20 Olof A Hallstrom Jr Reciprocating conveyor
US3905290A (en) * 1972-12-21 1975-09-16 Robert A Caughey Self-feeding press for producing strip material
FR2275669A2 (en) * 1974-06-19 1976-01-16 Jammes Pierre Actuator movement sequence control - auxiliary unit regulated by main piston position and movement
US4144963A (en) * 1974-08-12 1979-03-20 Hallstrom Olof A Reciprocating conveyor
US4184587A (en) * 1976-05-27 1980-01-22 Hallstrom Olof A Reciprocating conveyor and modular drive unit therefor
US4474285A (en) * 1982-02-08 1984-10-02 Foster Raymond K Drive unit mount for reciprocating floor conveyor
US4492303A (en) * 1982-02-08 1985-01-08 Foster Raymond K Drive/guide system for a reciprocating floor conveyor
US4508211A (en) * 1982-02-08 1985-04-02 Foster R Keith Reciprocating floor conveyor apparatus and method
US4580678A (en) * 1984-12-11 1986-04-08 Foster Raymond K Reciprocating floor conveyor system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1077145B (en) * 1955-04-30 1960-03-03 Buss Ag Hydraulic displacement device for systems for storing piece goods, in particular for parking automobiles
FR2288896A1 (en) * 1974-10-21 1976-05-21 Poclain Sa CYLINDER
US4143760A (en) * 1975-01-10 1979-03-13 Hallstrom Olof A Reciprocating conveyor
US4143760B1 (en) * 1975-01-10 1991-02-05 A Hallstrom Olof
EP0004165A1 (en) * 1978-03-02 1979-09-19 Applied Power Inc. Locking cylinders
WO1984003686A1 (en) * 1983-03-22 1984-09-27 Raymond Keith Foster Reduced size drive/frame assembly for a reciprocating floor conveyor

Also Published As

Publication number Publication date
EP0259900B1 (en) 1991-04-17
DE3769410D1 (en) 1991-05-23
EP0259900A2 (en) 1988-03-16
ATE62642T1 (en) 1991-05-15
JPS6371012A (en) 1988-03-31
JP2609250B2 (en) 1997-05-14
US4712467A (en) 1987-12-15
ES2021013B3 (en) 1991-10-16
CA1272426A (en) 1990-08-07

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